New Features
* New management command to resize a specific image: --resize=PATH/FILENAME
* Images and backgrounds are now be preloaded before being replaced to avoid
flickering
* Created the following jQuery plugins for resizing and replacing images and
backgrounds to allow more granular control:
swapImage(),
swapBackground(),
replaceAll()
Bug Fixes
* Fixed unicode decode error in management.commands.mediahelper
* Changed resize quality from 85 to 'keep' because resized jpegs were often
larger than their source files.
MISC
* Finally wrote a proper regex for url stripping in ajax.html
* Created tox envronments explicitly for django versions
v0.2.2-bugfix
* Fixed firefox issues. Now correctly removes host name from background-images
* Changed tests to work with and without tox
* Updated tests to reflect new default settings
* Fixed ajax success callbacks to use selectors defined in settings
* Updated readme